Electronic Theses

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Browsing Electronic Theses by Author "Advisor"

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    Effects of the Synthetic Pyrethroid Insecticide, Permethrin, on Two Estuarine Fish Species
    (2014-08-25) Parent, Lindsey M.; Advisor; DeLorenzo, Marie; Fulton, Michael; Burnett, Karen; Roumillat, William
    Pesticides can enter coastal waters via posing a risk to non-target aquatic species. Permethrin is a synthetic pyrethroid insecticide used in various settings to control insect pests. This study examined the effects of permethrin on two species of fish found in South Carolina estuaries, the red drum (Sciaenops ocellatus), and the mummichog (Fundulus heteroclitus). The 96h LC50, NOEC, and LOEC of permethrin were determined for both species representing different size classes. Sublethal cellular stress effects of permethrin were also assessed. Lipid peroxidation activity of the liver was significantly higher in permethrin-treated fish compared to control animals after 24h and significantly lower after 96h. Permethrin had no effect on liver somatic index, or on acetylcholinesterase activity of the brain at the concentrations tested. Permethrin exposure (96h) significantly inhibited splenocyte proliferation. Most of the effects of permethrin on fish cellular stress enzymes and survival occurred at concentrations higher than those measured in the environment. These findings will further understanding of the effects of permethrin on estuarine organisms and may prove useful to the future management and regulation of pyrethroid insecticide use near estuarine habitats.
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    Hail Columbia! Happy land!: Southerners in Europe and American nationalism, 1830-1860
    (2014-08-18) Smith, Miles, IV; Advisor; Gleeson, David; Gigova-Ganaway, Irina; Speelman, Jennifer
    This thesis examines the opinions of seven southerners who visited Europe between 1830 and 1860. Europe was experiencing the great nationalist upheavals of the nineteenth century, and these seven southerners (five men, two women) recorded their own thoughts and opinions about Europe. At the end of the same period, the United States was dividing along sectional lines. This work explores whether there really was a southern nationalism, an idea proposed to explain the southern states’ motivation for secession. Using the diaries, journals, and letters of the seven studied here, it is clear that they viewed themselves as Americans first and foremost. When these southern men and women were exposed to the aspirations of oppressed nationalities in Europe, they were sympathetic but they did not see any commonality between the oppressed minorities and the South. They were not reminded of a southern need for liberty. Instead, they gloried in their freedoms they had as Americans. As late as 1859, a South Carolina Methodist minister visiting Europe extolled his American nationality by writing "Hail Columbia! Happy land!" in contrast to the unhappy and divided "Old World."
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    Semantic Web, service oriented computing, and the standards that bind them
    (2014-08-18) Thomas, Robert W.; Advisor; Buhler, Paul A.; Starr, Christopher W.; Leclerc, Anthony P.
    The World Wide Web is continuously evolving. Even now Web 2.0, characterized by capabilities such as user generated content, social networking, and mash-up programs, is transitioning to the budding Web 3.0, also known as the Semantic Web. Concurrent with the evolution of the Web, the Service Oriented Computing (SOC) paradigm continues to develop. SOC is characterized by modular components and services that can be composed to create new functionality with minimal rework. The progression of SOC and the Semantic Web are intertwined, largely due to the fact that Web services, the predominant service delivery platform in SOC, leverages the infrastructure of the Internet. Additionally, SOC and Semantic Web technologies are interoperable due to their use of complementary standards. The more familiar SOC standards, such as WSDL, SOAP, HTTP and UDDI, are complemented by Semantic Web standards like RDF, OWL and most recently SPARQL, which achieved recommendation status in January 2008. This thesis explores work done to incorporate advanced features of SPARQL into an existing Service Composition Engine (SCE) application. The goal of this work was to increase the overall efficiency of the SCE, as well as to gain a better understanding of the intricacies of the relationship among SOC, the Semantic Web, and the various standards that affect them.